Home Products LCD Display Graphic LCD Modules WG14432B

144x32 Graphic LCD Display (2.44", COB, ST7920)

Model No. WG14432B

►Graphic LCD 144x32
►Type: Graphic
►Structure: COB
►Size: 2.44"
►IC: ST7920
►+5V power supply
►Internal boost option
►1/32 duty cycle
►LED can be driven by PIN15, PIN16 or A, K
►Chinese version
►Same size as WH1602B
►Interface: 6800/SPI

Description

WG14432B is a monochrome 144x32 graphic LCD module featuring a COB (Chip on Board) structure with an integrated PCB. It shares the same outline dimensions and pin configuration as the WH1602B character LCD, allowing easy integration or replacement. The module offers a 2.44-inch diagonal active display area.

This model is built with the ST7920 controller IC and supports both 6800 8-bit parallel and 4-line SPI serial interfaces. The standard operating voltage is +5V, and an internal voltage booster is optionally available for +3.3V systems.

WG14432B includes built-in font libraries for Traditional Chinese, Simplified Chinese, and Japanese, making it suitable for multilingual display applications. It is designed to operate in temperatures ranging from -20℃ to +70℃, with a storage temperature range of -30℃ to +80℃.

DRAWING

144x32 Graphic LCD Display (2.44 inch, COB, ST7920) - WG14432B
 
Data source ref:WG14432B-TMI-VGB#

SPECIFICATIONS

Mechanical Data

Item Dimension Unit
Number of dots 144 x 32
Module dimension 80.0 x 36.0 x 13.2 (MAX) mm
View area 66.0 x 16.0 mm
Active area 60.44 x 13.4 mm
Dot size 0.38 x 0.38 mm
Dot pitch 0.42 x 0.42 mm
Duty 1/32
Backlight Type LED
IC ST7920
Interface 6800

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 +70
Storage Temperature TST -30 +80
Input Voltage VIN -0.3 VDD+0.3 V
Supply Voltage For Logic VDD-VSS -0.3 5.5 V
Supply Voltage For LCD VO-VSS 0 7.0 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 4.5 5.0 5.5 V
Supply Voltage For LCD V0-VSS Ta=-20℃
Ta=25℃
Ta=70℃







V
V
V
Input High Volt. VIH 0.7VDD VDD V
Input Low Volt. VIL -0.3 0.6 V
Output High Volt. VOH 0.8VDD VDD V
Output Low Volt. VOL 0.4 V
Supply Current IDD VDD=5.0V 2.0 2.5 3.5 mA

Interface Pin Function

Pin No. Symbol Level Description
1 VSS 0V GND
2 VDD 5.0V Power Supply (+5V)
3 VO   No connection
4 RS H/L H/L register select signal
5 R/W H/L H/L Read/Write signal
6 E H/L Enable signal
7 DB0 H/L Data bus line
8 DB1 H/L Data bus line
9 DB2 H/L Data bus line
10 DB3 H/L Data bus line
11 DB4 H/L Data bus line
12 DB5 H/L Data bus line
13 DB6 H/L Data bus line
14 DB7 H/L Data bus line
15 A LED+
16 K LED-
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